const express = require('express');  
const WebSocket = require('ws');  
const axios = require('axios');  

const app = express();  
const PORT = process.env.PORT || 3000;  

const wss = new WebSocket.Server({ noServer: true });  

app.listen(PORT, () => {  
    console.log(`服务器正在运行在 http://localhost:${PORT}`);  
});  

wss.on('connection', (ws) => {  
    ws.on('message', async (message) => {  
        const data = JSON.parse(message);  
        if (data.audio) {  
            // 处理语音转文字  
            const text = await convertSpeechToText(data.audio);  
            const responseText = await getResponseFromAI(text);  
            const audioResponse = await convertTextToSpeech(responseText);  
            ws.send(JSON.stringify({ audio: audioResponse }));  
        } else if (data.text) {  
            // 处理文字对话  
            const responseText = await getResponseFromAI(data.text);  
            ws.send(JSON.stringify({ text: responseText }));  
        }  
    });  
});  

// 可扩展的伪代码，用于处理语音转文字  
async function convertSpeechToText(audioData) {  
    // 调用语音转文字的API  
    return "识别出的文本"; // 返回假设的文本  
}  

// 可扩展的伪代码，用于调用大语言模型  
async function getResponseFromAI(inputText) {  
    // 调用AI模型API  
    return "AI的回复"; // 返回假设的回复  
}  

// 可扩展的伪代码，用于处理文字转语音  
async function convertTextToSpeech(responseText) {  
    // 调用文字转语音的API  
    return new ArrayBuffer(); // 返回假设的音频数据  
async function convertSpeechToText(audioData) {  
        const response = await axios.post('https://api.example.com/speech-to-text', {  
            data: audioData,  
            headers: {  
                'Content-Type': 'application/octet-stream',  
                'API-Key': 'your_api_key'  
            }  
        });  
        return response.data.transcript; // 假设返回的文本字段为transcript  
    }  
    //添加api
    async function getResponseFromAI(inputText) {  
        const response = await axios.post('https://api.example.com/language-model', {  
            prompt: inputText,  
            headers: {  
                'Authorization': `Bearer your_api_key`  
            }  
        });  
        return response.data.response; // 假设返回字段为response  
    }  
    const axios = require('axios'); // 确保你在文件顶部引入了axios  

async function convertSpeechToText(audioData) {  
    const apiKey = '1jpd6i4N2eG5V6FRiEY701VP';  // 替换为你的API密钥  
    const response = await axios.post('https://api.baidu.com/speech/v2/recognize', {  
        data: audioData,  // 传递PCM音频数据  
        format: 'pcm', // 根据API要求设置音频格式  
    }, {  
        headers: {  
            'Content-Type': 'application/octet-stream',  
            'API-Key': apiKey  
        }  
    });  

    return response.data.transcript; // 假设返回的文本字段为transcript  
}  
async function getResponseFromAI(inputText) {  
    const apiKey = 'sk-d8159e1e50644053bff0596b3fd7aee9'; // 替换为你的API密钥  
    const response = await axios.post('https://api.example.com/language-model', {  
        prompt: inputText,  
        max_tokens: 150 // 根据具体API文档设置参数  
    }, {  
        headers: {  
            'Authorization': `Bearer ${apiKey}`  
        }  
    });  

    return response.data.response; // 假设返回字段为response  
}  
}  